fbtl/posix: fix length calculation for data sieving#10578

bwbarrett merged 1 commit intoopen-mpi:v4.1.xopen-mpi/ompi:v4.1.xfrom

edgargabriel:pr/v4.1-read-data-sieving-fixedgargabriel/ompi:pr/v4.1-read-data-sieving-fixCopy head branch name to clipboard